jargonize

Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

transitive v. To translate into jargon.

intransitive v. To talk or write jargon.

from Wiktionary, Creative Commons Attribution/Share-Alike License

v. To speak or write using jargon.

v. To convert into jargon; to express using jargon.

from The Century Dictionary and Cyclopedia

To speak a jargon; utter uncouth and unintelligible sounds.

Etymologies

jargon +‎ -ize (Wiktionary)

Examples

I'd say: more generally widespread among people. who jargonize about computing so often in their daily work that they often forget that not everybody, even in a country where people are as clever about English as German/Austrian/Swiss folks are (we all know that 100% population in these places speak a very perfect English) do understand what "downgrade" means.